OM-CP-XRTDTemp-Series

Supported Applications

The Omega OM-CP-RTDTempX Series consists of multi-channel RTD-based temperature data loggers designed for remote temperature monitoring or multiple points in a central location. These devices support simultaneous logging across all channels, enabling users to capture date and time-stamped data for analysis after the monitoring cycle is complete. The series facilitates real-time recording when used with a PC via free OM-CP software.

Operating Conditions & Performance

The X-Series measures temperatures from -200 °C to +850 °C (-328 °F to +1562 °F), which is probe dependent. A specified accuracy range of -200 °C to +200 °C (-328 °F to 392 °F) applies for calibrated accuracies based on standard Omega calibrations for the 0 Ω to 200 Ω range. Temperature resolution is 0.001 °C (0.0018 °F), and resistance resolution is 0.0001 Ω, both probe dependent.

Calibrated accuracy is ±0.04 °C (±0.072 °F) for temperature measurements and ±0.015 Ω @ 25 °C (77 °F) ambient. The reading rate ranges from 4 Hz up to 1 reading every 24 hours. Time accuracy is specified as ±1 minute/month, with a typical battery life of 18 months using the included user-replaceable 9 V lithium battery.

Operating environment limits are -20 °C to +60 °C (-4 °F to +140 °F) and 0 %RH to 95 %RH non-condensing. The enclosure is constructed of black anodized aluminum, and the series carries CE and ROHS approvals.

Input Connection & Probe Compatibility

The input connection utilizes a removable screw terminal supporting 2, 3, or 4 wire interfaces. Temperature specifications are based on ideal 100 Ω Pt RTD compliant with IEC 751 (1983) and ITS-90, using a 5000 Ω FSR configuration.

• Recommended: 100 Ω, 2 or 4 wire RTD probes for the most accurate performance.
• Note on 3-wire compatibility: Most 100 Ω, 3 wire RTD probes will work, but accuracy is not guaranteed. To determine if a 3-wire probe works, resistance between two same-colored wires should be less than 1 Ω.

Configuration Options

The series offers four channel configurations: 4-channel, 8-channel, 12-channel, and 16-channel. Memory capacity varies by the number of enabled channels; with all channels active, storage ranges from 698,709 readings per channel (4-channel) down to 174,677 readings per channel (16-channel). Users can enable or disable individual channels to maximize memory and name each channel with up to a ten-digit title.

Physical Dimensions & Weight

Housing dimensions increase with channel count:

• 4-channel / 8-channel: 2.70 in x 7.25 in x 1.22 in (65.6 mm x 184.2 mm x 31.0 mm); Weight: 13 oz (368 g).
• 12-channel: 2.70 in x 7.25 in x 1.68 in (65.6 mm x 184.2 mm x 42.7 mm); Weight: 20 oz (580 g).
• 16-channel: 2.70 in x 7.25 in x 2.14 in (65.6 mm x 184.2 mm x 54.4 mm); Weight: 28 oz (800 g).

Software & Data Management

The series ships with a USB-A to micro USB cable for connection to Windows XP SP3/7/8/10 systems at 460,800 baud. Start modes include software-programmable immediate start or delay start up to 6 months in advance. Digital calibration is performed through the software, and the calibration date is automatically recorded within the device.

Data formats support C, °F, K, °R, and Ω units with graphical, tabular, and statistical analysis options via OM-CP Standard Software version 4.2.19.0 or later, or Secure Software version 4.2.18.0 or later.

Key Product Differences

The series is available in four distinct model numbers corresponding to channel count:

• OM-CP-QUADRTDTEMP-A2: 4-Channel RTD Data Logger, includes USB-A to micro USB cable and universal power adapter.
• OM-CP-OCTRTDTEMP-A2: 8-Channel RTD Data Logger, includes USB-A to micro USB cable and universal power adapter.
• OM-CP-X12RTDTEMP-A2: 12-Channel RTD Data Logger, includes USB-A to micro USB cable and universal power adapter.
• OM-CP-X16RTDTEMP-A2: 16-Channel RTD Data Logger, includes USB-A to micro USB cable and universal power adapter.

A replacement battery is available as part number OM-CP-BAT103. The device stops recording when memory ends or the user stops it; re-arming via computer is required before restarting.